Oxacyclic compounds

Organic heterocyclic compounds that contain one or more oxygen atoms either within the ring's structure or linked to the ring.

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Maleic anhydride, 98+%

CAS: 108-31-6 Molecular Formula: C4H2O3 Molecular Weight (g/mol): 98.06 MDL Number: MFCD00005518 InChI Key: FPYJFEHAWHCUMM-UHFFFAOYSA-N Synonym: maleic anhydride,2,5-furandione,maleic acid anhydride,toxilic anhydride,dihydro-2,5-dioxofuran,cis-butenedioic anhydride,2,5-dihydrofuran-2,5-dione,polymaleic anhydride,maleinanhydrid,rcra waste number u147 PubChem CID: 7923 ChEBI: CHEBI:474859 IUPAC Name: furan-2,5-dione SMILES: O=C1OC(=O)C=C1

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PubChem CID	7923
CAS	108-31-6
Molecular Weight (g/mol)	98.06
ChEBI	CHEBI:474859
MDL Number	MFCD00005518
SMILES	O=C1OC(=O)C=C1
Synonym	maleic anhydride,2,5-furandione,maleic acid anhydride,toxilic anhydride,dihydro-2,5-dioxofuran,cis-butenedioic anhydride,2,5-dihydrofuran-2,5-dione,polymaleic anhydride,maleinanhydrid,rcra waste number u147
IUPAC Name	furan-2,5-dione
InChI Key	FPYJFEHAWHCUMM-UHFFFAOYSA-N
Molecular Formula	C4H2O3

Phthalic anhydride, ACS, 99.0-100.2%

CAS: 85-44-9 Molecular Formula: C8H4O3 Molecular Weight (g/mol): 148.12 MDL Number: MFCD00005918 InChI Key: LGRFSURHDFAFJT-UHFFFAOYSA-N Synonym: phthalic anhydride,isobenzofuran-1,3-dione,1,3-isobenzofurandione,1,3-dioxophthalan,1,3-phthalandione,phthalsaeureanhydrid,phthalic acid anhydride,o-phthalic acid anhydride,phthalandione,retarder esen PubChem CID: 6811 ChEBI: CHEBI:36605 IUPAC Name: 2-benzofuran-1,3-dione SMILES: O=C1OC(=O)C2=CC=CC=C12

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PubChem CID	6811
CAS	85-44-9
Molecular Weight (g/mol)	148.12
ChEBI	CHEBI:36605
MDL Number	MFCD00005918
SMILES	O=C1OC(=O)C2=CC=CC=C12
Synonym	phthalic anhydride,isobenzofuran-1,3-dione,1,3-isobenzofurandione,1,3-dioxophthalan,1,3-phthalandione,phthalsaeureanhydrid,phthalic acid anhydride,o-phthalic acid anhydride,phthalandione,retarder esen
IUPAC Name	2-benzofuran-1,3-dione
InChI Key	LGRFSURHDFAFJT-UHFFFAOYSA-N
Molecular Formula	C8H4O3

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PubChem CID	7923
CAS	108-31-6
Molecular Weight (g/mol)	98.06
ChEBI	CHEBI:474859
MDL Number	MFCD00005518
SMILES	O=C1OC(=O)C=C1
Synonym	maleic anhydride,2,5-furandione,maleic acid anhydride,toxilic anhydride,dihydro-2,5-dioxofuran,cis-butenedioic anhydride,2,5-dihydrofuran-2,5-dione,polymaleic anhydride,maleinanhydrid,rcra waste number u147
InChI Key	FPYJFEHAWHCUMM-UHFFFAOYSA-N
Molecular Formula	C4H2O3

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2,3-Dimethylmaleic anhydride, 97%

CAS: 766-39-2 Molecular Formula: C6H6O3 Molecular Weight (g/mol): 126.111 MDL Number: MFCD00005523 InChI Key: MFGALGYVFGDXIX-UHFFFAOYSA-N Synonym: 2,3-dimethylmaleic anhydride,dimethylmaleic anhydride,2,5-furandione, 3,4-dimethyl,pyrocinchonic anhydride,maleic anhydride, dimethyl,dimethylmaleic acid anhydride,2,3-dimethylmaleicanhydride,unii-6pp3n541qa,3,4-dimethyl-furan-2,5-dione,alpha,beta-dimethylmaleic anhydride PubChem CID: 13010 IUPAC Name: 3,4-dimethylfuran-2,5-dione SMILES: CC1=C(C(=O)OC1=O)C

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PubChem CID	13010
CAS	766-39-2
Molecular Weight (g/mol)	126.111
MDL Number	MFCD00005523
SMILES	CC1=C(C(=O)OC1=O)C
Synonym	2,3-dimethylmaleic anhydride,dimethylmaleic anhydride,2,5-furandione, 3,4-dimethyl,pyrocinchonic anhydride,maleic anhydride, dimethyl,dimethylmaleic acid anhydride,2,3-dimethylmaleicanhydride,unii-6pp3n541qa,3,4-dimethyl-furan-2,5-dione,alpha,beta-dimethylmaleic anhydride
IUPAC Name	3,4-dimethylfuran-2,5-dione
InChI Key	MFGALGYVFGDXIX-UHFFFAOYSA-N
Molecular Formula	C6H6O3

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6-Methylchromone, 98%

CAS: 38445-23-7 Molecular Formula: C10H8O2 Molecular Weight (g/mol): 160.172 MDL Number: MFCD00218598 InChI Key: HTXQVFXXVXOLCF-UHFFFAOYSA-N Synonym: 6-methylchromone,6-methyl-4h-chromen-4-one,6-methylchromone hydrate,chromone, 6-methyl,acmc-20aly0,6-methyl-4h-chromen-4-one #,6-methyl-4-oxo-4h-1-benzopyran,6-methyl-4h-1-benzopyran-4-one,4h-1-benzopyran-4-one,6-methyl PubChem CID: 594810 IUPAC Name: 6-methylchromen-4-one SMILES: CC1=CC2=C(C=C1)OC=CC2=O

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PubChem CID	594810
CAS	38445-23-7
Molecular Weight (g/mol)	160.172
MDL Number	MFCD00218598
SMILES	CC1=CC2=C(C=C1)OC=CC2=O
Synonym	6-methylchromone,6-methyl-4h-chromen-4-one,6-methylchromone hydrate,chromone, 6-methyl,acmc-20aly0,6-methyl-4h-chromen-4-one #,6-methyl-4-oxo-4h-1-benzopyran,6-methyl-4h-1-benzopyran-4-one,4h-1-benzopyran-4-one,6-methyl
IUPAC Name	6-methylchromen-4-one
InChI Key	HTXQVFXXVXOLCF-UHFFFAOYSA-N
Molecular Formula	C10H8O2

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9-Hydroxyxanthene, 97+%

CAS: 90-46-0 Molecular Formula: C₁₃H₁₀O₂ Molecular Weight (g/mol): 198.22 MDL Number: MFCD00005057 InChI Key: JFRMYMMIJXLMBB-UHFFFAOYSA-N Synonym: 9-hydroxyxanthene,xanthydrol,xanthanol,9-xanthydrol,xanthen-9-ol,xanthene, hydroxy,9-xanthenol,ccris 1640,unii-7131m69ikf,xanthrol PubChem CID: 72861 IUPAC Name: 9H-xanthen-9-ol SMILES: C1=CC=C2C(=C1)C(C3=CC=CC=C3O2)O

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PubChem CID	72861
CAS	90-46-0
Molecular Weight (g/mol)	198.22
MDL Number	MFCD00005057
SMILES	C1=CC=C2C(=C1)C(C3=CC=CC=C3O2)O
Synonym	9-hydroxyxanthene,xanthydrol,xanthanol,9-xanthydrol,xanthen-9-ol,xanthene, hydroxy,9-xanthenol,ccris 1640,unii-7131m69ikf,xanthrol
IUPAC Name	9H-xanthen-9-ol
InChI Key	JFRMYMMIJXLMBB-UHFFFAOYSA-N
Molecular Formula	C₁₃H₁₀O₂

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Xanthydrol, 98+%

CAS: 90-46-0 Molecular Formula: C13H10O2 Molecular Weight (g/mol): 198.221 MDL Number: MFCD00005057 InChI Key: JFRMYMMIJXLMBB-UHFFFAOYSA-N Synonym: 9-hydroxyxanthene,xanthydrol,xanthanol,9-xanthydrol,xanthen-9-ol,xanthene, hydroxy,9-xanthenol,ccris 1640,unii-7131m69ikf,xanthrol PubChem CID: 72861 IUPAC Name: 9H-xanthen-9-ol SMILES: C1=CC=C2C(=C1)C(C3=CC=CC=C3O2)O

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PubChem CID	72861
CAS	90-46-0
Molecular Weight (g/mol)	198.221
MDL Number	MFCD00005057
SMILES	C1=CC=C2C(=C1)C(C3=CC=CC=C3O2)O
Synonym	9-hydroxyxanthene,xanthydrol,xanthanol,9-xanthydrol,xanthen-9-ol,xanthene, hydroxy,9-xanthenol,ccris 1640,unii-7131m69ikf,xanthrol
IUPAC Name	9H-xanthen-9-ol
InChI Key	JFRMYMMIJXLMBB-UHFFFAOYSA-N
Molecular Formula	C13H10O2

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5-Aminophthalide, 97%, Thermo Scientific Chemicals

CAS: 65399-05-5 Molecular Formula: C8H7NO2 Molecular Weight (g/mol): 149.149 MDL Number: MFCD00778315 InChI Key: ISMUWQMUWFPFBZ-UHFFFAOYSA-N Synonym: 5-aminophthalide,5-aminoisobenzofuran-1 3h-one,5-amino-3h-isobenzofuran-1-one,5-amino-2-benzofuran-1 3h-one,1 3h-isobenzofuranone, 5-amino,5-amino-1 3h-isobenzofuranone,5-amino-1,3-dihydro-2-benzofuran-1-one,5-amino-3-hydroisobenzofuran-1-one,5-aminophthliade,5-amino-phthalide PubChem CID: 720669 IUPAC Name: 5-amino-3H-2-benzofuran-1-one SMILES: C1C2=C(C=CC(=C2)N)C(=O)O1

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Specifications

PubChem CID	720669
CAS	65399-05-5
Molecular Weight (g/mol)	149.149
MDL Number	MFCD00778315
SMILES	C1C2=C(C=CC(=C2)N)C(=O)O1
Synonym	5-aminophthalide,5-aminoisobenzofuran-1 3h-one,5-amino-3h-isobenzofuran-1-one,5-amino-2-benzofuran-1 3h-one,1 3h-isobenzofuranone, 5-amino,5-amino-1 3h-isobenzofuranone,5-amino-1,3-dihydro-2-benzofuran-1-one,5-amino-3-hydroisobenzofuran-1-one,5-aminophthliade,5-amino-phthalide
IUPAC Name	5-amino-3H-2-benzofuran-1-one
InChI Key	ISMUWQMUWFPFBZ-UHFFFAOYSA-N
Molecular Formula	C8H7NO2

Psoralen, 97%, Thermo Scientific Chemicals

CAS: 66-97-7 Molecular Formula: C11H6O3 Molecular Weight (g/mol): 186.17 MDL Number: MFCD00010520 InChI Key: ZCCUUQDIBDJBTK-UHFFFAOYSA-N Synonym: psoralen,ficusin,7h-furo 3,2-g chromen-7-one,furocoumarin,psoralene,7h-furo 3,2-g 1 benzopyran-7-one,psorline-p,6,7-furanocoumarin,furo 3,2-g chromen-7-one,furo 3,2-g coumarin PubChem CID: 6199 ChEBI: CHEBI:27616 IUPAC Name: 7H-furo[3,2-g]chromen-7-one SMILES: O=C1OC2=CC3=C(C=CO3)C=C2C=C1

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PubChem CID	6199
CAS	66-97-7
Molecular Weight (g/mol)	186.17
ChEBI	CHEBI:27616
MDL Number	MFCD00010520
SMILES	O=C1OC2=CC3=C(C=CO3)C=C2C=C1
Synonym	psoralen,ficusin,7h-furo 3,2-g chromen-7-one,furocoumarin,psoralene,7h-furo 3,2-g 1 benzopyran-7-one,psorline-p,6,7-furanocoumarin,furo 3,2-g chromen-7-one,furo 3,2-g coumarin
IUPAC Name	7H-furo[3,2-g]chromen-7-one
InChI Key	ZCCUUQDIBDJBTK-UHFFFAOYSA-N
Molecular Formula	C11H6O3

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3,4-Dihydro-2H-pyran, 99%

CAS: 110-87-2 Molecular Formula: C₅H₈O Molecular Weight (g/mol): 84.12 MDL Number: MFCD00006558 InChI Key: BUDQDWGNQVEFAC-UHFFFAOYSA-N Synonym: dihydropyran,3,4-dihydropyran,2,3-dihydropyran,2h-3,4-dihydropyran,2,3-dihydro-4h-pyran,dihydro-2h-pyran,2h-pyran, dihydro,2h-pyran, 3,4-dihydro,5,6-dihydro-4h-pyran,dihydropyrane PubChem CID: 8080 IUPAC Name: 3,4-dihydro-2H-pyran SMILES: C1CC=COC1

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PubChem CID	8080
CAS	110-87-2
Molecular Weight (g/mol)	84.12
MDL Number	MFCD00006558
SMILES	C1CC=COC1
Synonym	dihydropyran,3,4-dihydropyran,2,3-dihydropyran,2h-3,4-dihydropyran,2,3-dihydro-4h-pyran,dihydro-2h-pyran,2h-pyran, dihydro,2h-pyran, 3,4-dihydro,5,6-dihydro-4h-pyran,dihydropyrane
IUPAC Name	3,4-dihydro-2H-pyran
InChI Key	BUDQDWGNQVEFAC-UHFFFAOYSA-N
Molecular Formula	C₅H₈O

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4-Oxo-4H-1-benzopyran-2-carboxylic acid, 97%

CAS: 4940-39-0 Molecular Formula: C₁₀H₆O₄ Molecular Weight (g/mol): 190.15 MDL Number: MFCD00006838 InChI Key: RVMGXWBCQGAWBR-UHFFFAOYSA-N Synonym: chromocarb,chromone-2-carboxylic acid,4-oxo-4h-chromene-2-carboxylic acid,4-oxo-4h-1-benzopyran-2-carboxylic acid,atremon,chromonecarboxylic acid,lp-1,chromocarb inn:dcf,2-chromonecarboxylic acid,chromocarbe inn-french PubChem CID: 2741 IUPAC Name: 4-oxochromene-2-carboxylic acid SMILES: C1=CC=C2C(=C1)C(=O)C=C(O2)C(=O)O

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PubChem CID	2741
CAS	4940-39-0
Molecular Weight (g/mol)	190.15
MDL Number	MFCD00006838
SMILES	C1=CC=C2C(=C1)C(=O)C=C(O2)C(=O)O
Synonym	chromocarb,chromone-2-carboxylic acid,4-oxo-4h-chromene-2-carboxylic acid,4-oxo-4h-1-benzopyran-2-carboxylic acid,atremon,chromonecarboxylic acid,lp-1,chromocarb inn:dcf,2-chromonecarboxylic acid,chromocarbe inn-french
IUPAC Name	4-oxochromene-2-carboxylic acid
InChI Key	RVMGXWBCQGAWBR-UHFFFAOYSA-N
Molecular Formula	C₁₀H₆O₄

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Coumalic acid, 97%

CAS: 500-05-0 Molecular Formula: C6H4O4 Molecular Weight (g/mol): 140.09 MDL Number: MFCD00006644 InChI Key: ORGPJDKNYMVLFL-UHFFFAOYSA-N Synonym: coumalic acid,2-oxo-2h-pyran-5-carboxylic acid,cumalic acid,2h-pyran-5-carboxylic acid, 2-oxo,2-oxopyran-5-carboxylic acid,unii-ob1jpy343g,2-pyrone-5-carboxylic acid,alpha-pyrone-5-carboxylic acid,.alpha.-pyrone-5-carboxylic acid,ob1jpy343g PubChem CID: 68141 SMILES: OC(=O)C1=COC(=O)C=C1

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PubChem CID	68141
CAS	500-05-0
Molecular Weight (g/mol)	140.09
MDL Number	MFCD00006644
SMILES	OC(=O)C1=COC(=O)C=C1
Synonym	coumalic acid,2-oxo-2h-pyran-5-carboxylic acid,cumalic acid,2h-pyran-5-carboxylic acid, 2-oxo,2-oxopyran-5-carboxylic acid,unii-ob1jpy343g,2-pyrone-5-carboxylic acid,alpha-pyrone-5-carboxylic acid,.alpha.-pyrone-5-carboxylic acid,ob1jpy343g
InChI Key	ORGPJDKNYMVLFL-UHFFFAOYSA-N
Molecular Formula	C6H4O4

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4,6-Dimethyl-2-pyrone, 98%

CAS: 675-09-2 Molecular Formula: C₇H₈O₂ Molecular Weight (g/mol): 124.14 MDL Number: MFCD00075555 Synonym: 4,6-dimethyl-2-pyrone,4,6-dimethyl-2h-pyran-2-one,mesitene lactone,4,6-dimethylcoumalin,2h-pyran-2-one, 4,6-dimethyl,4,6-dimethyl-alpha-pyrone,4,6-dimethyl-pyran-2-one,2,4-dimethyl-alpha-pyrone,2,4-dimethyl-.alpha.-pyrone,4,6-dimethyl-.alpha.-pyrone

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CAS	675-09-2
Molecular Weight (g/mol)	124.14
MDL Number	MFCD00075555
Synonym	4,6-dimethyl-2-pyrone,4,6-dimethyl-2h-pyran-2-one,mesitene lactone,4,6-dimethylcoumalin,2h-pyran-2-one, 4,6-dimethyl,4,6-dimethyl-alpha-pyrone,4,6-dimethyl-pyran-2-one,2,4-dimethyl-alpha-pyrone,2,4-dimethyl-.alpha.-pyrone,4,6-dimethyl-.alpha.-pyrone
Molecular Formula	C₇H₈O₂

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3,4-Dihydro-2H-pyran, 99%

CAS: 110-87-2 Molecular Formula: C5H8O Molecular Weight (g/mol): 84.118 MDL Number: MFCD00006558 InChI Key: BUDQDWGNQVEFAC-UHFFFAOYSA-N Synonym: dihydropyran,3,4-dihydropyran,2,3-dihydropyran,2h-3,4-dihydropyran,2,3-dihydro-4h-pyran,dihydro-2h-pyran,2h-pyran, dihydro,2h-pyran, 3,4-dihydro,5,6-dihydro-4h-pyran,dihydropyrane PubChem CID: 8080 IUPAC Name: 3,4-dihydro-2H-pyran SMILES: C1CC=COC1

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PubChem CID	8080
CAS	110-87-2
Molecular Weight (g/mol)	84.118
MDL Number	MFCD00006558
SMILES	C1CC=COC1
Synonym	dihydropyran,3,4-dihydropyran,2,3-dihydropyran,2h-3,4-dihydropyran,2,3-dihydro-4h-pyran,dihydro-2h-pyran,2h-pyran, dihydro,2h-pyran, 3,4-dihydro,5,6-dihydro-4h-pyran,dihydropyrane
IUPAC Name	3,4-dihydro-2H-pyran
InChI Key	BUDQDWGNQVEFAC-UHFFFAOYSA-N
Molecular Formula	C5H8O

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Chromone-3-carboxylic acid, 98%

CAS: 39079-62-4 Molecular Formula: C10H6O4 Molecular Weight (g/mol): 190.154 MDL Number: MFCD00017338 InChI Key: PCIITXGDSHXTSN-UHFFFAOYSA-N Synonym: chromone-3-carboxylic acid,4-oxo-4h-chromene-3-carboxylic acid,4-oxo-4h-1-benzopyran-3-carboxylic acid,maybridge1_005842,3-carboxychromone,d04tgn,acmc-1ad65,4-oxo-chromene-3-carboxylic acid,4h-chromen-4-one-3-carboxylic acid PubChem CID: 181620 IUPAC Name: 4-oxochromene-3-carboxylic acid SMILES: C1=CC=C2C(=C1)C(=O)C(=CO2)C(=O)O

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Specifications

PubChem CID	181620
CAS	39079-62-4
Molecular Weight (g/mol)	190.154
MDL Number	MFCD00017338
SMILES	C1=CC=C2C(=C1)C(=O)C(=CO2)C(=O)O
Synonym	chromone-3-carboxylic acid,4-oxo-4h-chromene-3-carboxylic acid,4-oxo-4h-1-benzopyran-3-carboxylic acid,maybridge1_005842,3-carboxychromone,d04tgn,acmc-1ad65,4-oxo-chromene-3-carboxylic acid,4h-chromen-4-one-3-carboxylic acid
IUPAC Name	4-oxochromene-3-carboxylic acid
InChI Key	PCIITXGDSHXTSN-UHFFFAOYSA-N
Molecular Formula	C10H6O4

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